The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Jun. 05, 2006
Patrik Andersson, Skogås, SE;
Patrik Andersson, Skogås, SE;
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
The invention relates to a pump for pumping contaminated liquid including solid matter, comprising a pump housing provided with a rotatable impeller () having at least one vane () and an impeller seat (), the impeller seat () presenting at least one recess () in the top surface () thereof, a sheering/cutting action arising between an cutting edge () of said recess () and a lower edge () of the vane () as the impeller () rotates relative to the impeller seat (). Furthermore, the pump also comprises means for guiding the solid matter towards said recess (), the guiding means comprising at least one guide in and at least one projection (), an upper surface () of the guide pin extending from a position contiguous to the most inner part of the vane () of the impeller () towards the impeller seat (), and the projection () protruding from the impeller seat ().